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    <title>系统设置 - 智慧题库</title>
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                <h1 class="text-xl font-bold text-dark ml-0 md:ml-[-2rem]">智慧题库管理系统</h1>
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                <a href="AdminDashboard.html" class="nav-item">
                    <i class="fa fa-home mr-2"></i> 控制面板
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                <a href="QuestionManagement.html" class="nav-item">
                    <i class="fa fa-book mr-2"></i> 题库管理
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                <a href="ExamManagement.html" class="nav-item">
                    <i class="fa fa-graduation-cap mr-2"></i> 考试管理
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                <a href="TextbookVersionList.html" class="nav-item">
                    <i class="fa fa-archive mr-2"></i> 教材管理
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                <a href="StatisticsAnalysis.html" class="nav-item">
                    <i class="fa fa-bar-chart mr-2"></i> 数据分析
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                <a href="SystemSettings.html" class="nav-item active">
                    <i class="fa fa-cog mr-2"></i> 系统设置
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                    <span class="hidden md:inline text-sm font-medium text-dark">张老师</span>
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            <!-- 系统设置菜单 -->
            <div class="p-4 border-b border-gray-200">
                <h3 class="text-lg font-bold text-center text-muted uppercase tracking-wider">系统设置</h3>
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            <div class="p-2">
                <div class="sidebar-item active">
                    <i class="fa fa-globe"></i>
                    <span>站点设置</span>
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                <div class="sidebar-item">
                    <i class="fa fa-user-plus"></i>
                    <span>注册设置</span>
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                <div class="sidebar-item">
                    <i class="fa fa-cog"></i>
                    <span>基础设置</span>
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                <div class="sidebar-item">
                    <i class="fa fa-shield"></i>
                    <span>安全设置</span>
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                    <i class="fa fa-users"></i>
                    <span>角色权限</span>
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                <div class="sidebar-item">
                    <i class="fa fa-database"></i>
                    <span>数据备份</span>
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        <!-- 内容区域 -->
        <div class="flex-grow p-6">
            <!-- 页面标题 -->
            <div class="mb-8">
                <h2 class="text-[clamp(1.5rem,3vw,2rem)] font-bold text-dark">系统设置</h2>
                <p class="text-muted mt-2">配置系统参数、用户权限等设置</p>
            </div>
            
            <!-- 设置卡片 -->
            <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
                <!-- 站点设置 -->
                <div class="bg-white rounded-2xl p-6 shadow-card">
                    <div class="flex items-center justify-between mb-6">
                        <h3 class="text-lg font-bold text-dark">站点设置</h3>
                        <button class="px-4 py-2 bg-primary text-white rounded-lg hover:bg-primary/90 transition-colors">
                            保存设置
                        </button>
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                    <div class="space-y-4">
                        <div>
                            <label class="block text-sm font-medium text-dark mb-2">站点名称</label>
                            <input type="text" value="智慧题库管理系统" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary/50">
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                            <label class="block text-sm font-medium text-dark mb-2">站点描述</label>
                            <textarea class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary/50" rows="3">专业的在线题库管理系统，提供全面的试题管理和考试功能</textarea>
                        </div>
                        <div>
                            <label class="block text-sm font-medium text-dark mb-2">管理员邮箱</label>
                            <input type="email" value="admin@example.com" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary/50">
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                    </div>
                </div>
                
                <!-- 安全设置 -->
                <div class="bg-white rounded-2xl p-6 shadow-card">
                    <div class="flex items-center justify-between mb-6">
                        <h3 class="text-lg font-bold text-dark">安全设置</h3>
                        <button class="px-4 py-2 bg-primary text-white rounded-lg hover:bg-primary/90 transition-colors">
                            保存设置
                        </button>
                    </div>
                    <div class="space-y-4">
                        <div class="flex items-center justify-between">
                            <div>
                                <h4 class="text-sm font-medium text-dark">启用双因素认证</h4>
                                <p class="text-xs text-muted">为管理员账户启用双因素认证</p>
                            </div>
                            <label class="relative inline-flex items-center cursor-pointer">
                                <input type="checkbox" class="sr-only peer" checked>
                                <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-4 peer-focus:ring-primary/20 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                            </label>
                        </div>
                        <div class="flex items-center justify-between">
                            <div>
                                <h4 class="text-sm font-medium text-dark">登录失败限制</h4>
                                <p class="text-xs text-muted">限制登录失败次数</p>
                            </div>
                            <label class="relative inline-flex items-center cursor-pointer">
                                <input type="checkbox" class="sr-only peer" checked>
                                <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-4 peer-focus:ring-primary/20 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                            </label>
                        </div>
                        <div class="flex items-center justify-between">
                            <div>
                                <h4 class="text-sm font-medium text-dark">自动备份</h4>
                                <p class="text-xs text-muted">每日自动备份数据</p>
                            </div>
                            <label class="relative inline-flex items-center cursor-pointer">
                                <input type="checkbox" class="sr-only peer">
                                <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-4 peer-focus:ring-primary/20 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                            </label>
                        </div>
                    </div>
                </div>
                
                <!-- 用户权限 -->
                <div class="bg-white rounded-2xl p-6 shadow-card">
                    <div class="flex items-center justify-between mb-6">
                        <h3 class="text-lg font-bold text-dark">用户权限</h3>
                        <button class="px-4 py-2 bg-primary text-white rounded-lg hover:bg-primary/90 transition-colors">
                            添加角色
                        </button>
                    </div>
                    <div class="space-y-4">
                        <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg">
                            <div>
                                <h4 class="text-sm font-medium text-dark">管理员</h4>
                                <p class="text-xs text-muted">拥有所有权限</p>
                            </div>
                            <button class="text-primary hover:text-primary/80 text-sm">编辑</button>
                        </div>
                        <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg">
                            <div>
                                <h4 class="text-sm font-medium text-dark">教师</h4>
                                <p class="text-xs text-muted">可以管理题目和考试</p>
                            </div>
                            <button class="text-primary hover:text-primary/80 text-sm">编辑</button>
                        </div>
                        <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg">
                            <div>
                                <h4 class="text-sm font-medium text-dark">学生</h4>
                                <p class="text-xs text-muted">只能参与答题</p>
                            </div>
                            <button class="text-primary hover:text-primary/80 text-sm">编辑</button>
                        </div>
                    </div>
                </div>
                
                <!-- 系统信息 -->
                <div class="bg-white rounded-2xl p-6 shadow-card">
                    <h3 class="text-lg font-bold text-dark mb-6">系统信息</h3>
                    <div class="space-y-4">
                        <div class="flex justify-between">
                            <span class="text-sm text-muted">系统版本</span>
                            <span class="text-sm text-dark">v2.1.0</span>
                        </div>
                        <div class="flex justify-between">
                            <span class="text-sm text-muted">PHP版本</span>
                            <span class="text-sm text-dark">8.1.12</span>
                        </div>
                        <div class="flex justify-between">
                            <span class="text-sm text-muted">数据库</span>
                            <span class="text-sm text-dark">MySQL 8.0</span>
                        </div>
                        <div class="flex justify-between">
                            <span class="text-sm text-muted">服务器</span>
                            <span class="text-sm text-dark">Nginx 1.20</span>
                        </div>
                        <div class="flex justify-between">
                            <span class="text-sm text-muted">最后更新</span>
                            <span class="text-sm text-dark">2023-12-15</span>
                        </div>
                    </div>
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                        <button class="w-full px-4 py-2 bg-secondary text-white rounded-lg hover:bg-secondary/90 transition-colors">
                            <i class="fa fa-download mr-2"></i>检查更新
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